Expansion shield



May 26, 1931'. R. E. OGDEN 1,806,640

EXPANSION SHIELD Filed June 12, 1926 F191. 3 u /2 M /0 INVENTOR Ralph E.Oydezz. 4

Patented May 26, 1931 UNITED STAT New oFFicE RALPH E. OGDEN,OFLAWRENCE,.NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO J. EDWARD OGDENCOMPANY; OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY EXPANSIONSHIELD Substitute for application Serial No. 720,757, filed June 18,1924. This application filed June 12, 1926.

Serial 1%. 115,494.

This invention relates to improvements in Another object of theinvention is to provide an expansion shield adapted to be used with andexpanded by a driven expanding member.

Another object of the invention is to provide a flanged expansion shieldand an expanding element therefor having a flange adapted to coact withand reinforce the flange of the expansion shield.

"Another object of the invention is to provide an expansion shield o frelatively hard metal having relatively soft metal disposed on the outersurface thereof and adapted to be expanded into gripping contact withthe wall of the opening in which the shield is mounted. r i

Further objects of the invention will appear from the followingspecification taken in connection with the drawings, which form a partof this application, and in which Fig. 1 is'a longitudinal section of ashield constructed in accordance with the invention.

Fig. 2 is an end elevation of the outer end ofthe shield shown in Fig.1.

Fig. '3 is a transverse sectional elevationh I y form an annulardepression lnthe shield when the sections are secured together. Theshield I taken substantially on line 33 of Fig. 1. Fig. 4 is alongitudinal sectional elevation of a slightly modified form of shieldconstructed inaccordance with the invention.

s Fig. 5 is a transverse sectional elevation of the structure shown inFig. 4'.

Fig. 6 is a longitudinal sectional elevation showing the shield of Fig.1 mounted in the wall opening and illustrating an expanding element andan object retained between the shield flange and the wall of thestructure in which the shield is mounted; and

Fig. 7 is 'a sectional elevation similar to Fig. 6, but showing theobject to be retained matter disclosed in application Serial No.

636,390 filed May 3,1923, the disclosure in Figs. 4 and 5 of this casebeing-identical with the disclosure of Figs. 13 and 14 of saidapplication, and is substituted for an application filed June 18, 1924as Serial The invention briefly described consists of an expansionshield particularly adapted for use with a driven expanding element. Theshield may be formed in one piece or may comprise two sections and isprovided with an annular depression. A band is disposed in the annulardepression and retains the sections together when the shield is formedin sections. This band forms excess metal on the outer surface of theshield and is preferably formed of soft metal, such as lead. The annulardepression forms the internal annularshoulderwhich is engaged by the-driven expanding elementwhen this element is driven into'the shield andas the expanding element is forced into the depressed portion of theshield,.the excess metal is pressed outwardly into firm and grippingengagement with the interior of the open No. 720,7 57 i In theparticular embodiment of the invention'shown the shield comprises a pairof sections lO and 11. These two sections have. formed therein depressedportions 12 which also has a laterally extending fiange 13 at its outerend. A band 15 preferablyformed of soft metalsuch as lead is wrappedaround the annular depression of the shield. and

secures the sections together. It should be 7 noted that this band 15 isdisposed between an inwardly extending annular shoulder 16 formed by thedepressed portion of the shield and the flange 14 formed at the innerend of the shield. ,The band is preferably of such thicknessthat theouter surface of the band substantially coincides with the cylindricalouter surface 17 of the shield.

Figs. 4 and 5 illustrate a similar construction in which the shoulder 18is more abrupt or square than shoulder 16 of Fig. l. The band 42 in Fig.4 is shown as formed of the same metal as the shield. Figs. 4 and 5 areidentical with Figs. and 14 of application Serial No. 636,390 filed May3, 1923 and as to this subject matter, this application is acontinuation in part of said application.

The shield above described is used with a driven expanding element ornail 20 having a tapered inner end 21 and a flange orhead 22.

In Fig. 6 the object 25 is shown as mounted on the outer surface 17 ofthe shield between the flange 13 and the wall 26 of the structure inwhich the shield is mounted.

In Fig. 7 the object 27 is mounted on the expanding element or nail 20and is disposed outside the flange 13 of the shield.

hen the nail is driven into the shield. the tapered end 21 will enterthe restricted portion of the shield and will expand the soft metal 15into firm and gripping engagement with the wall of the opening in whichthe shield is inserted.

With the object 27 mounted on the nail 20 as shown in Fig. 7, the flangeof the shield will be driven into the wall 26 as shown in dotted linesat 28 and the object will, therefore, be flush with the wall surface.

It should he noted that the head 22 of the nail 20 serves to reinforcethe flange 13 of the shield when the parts are arranged as shown in Fig.6 thereby aiding in retaining the object 25 in position.

Particular attention is called tothe fact that the flange at the inner.end of the shield and the annular shoulder the outer end of thedepression serve to retain the metal 15 against longitudinal movementrelative to the shield when the shield is expanded. The metal is,therefore forced radially by the expanding element and secures a firmand rigid grip in the material of the wall.

Although certain specific embodiments of the invention have beenparticularly shown and described, it will'be understood that theinvention is capable of modification and that changes in theconstruction and in-the arrangement of the various cooperating parts maybe made without departing from the spirit or scope of the invention, asexpressed in the following claims.

What I claim is:

1. An expansion shield comprising a pair of sections of relatively hardsheet metal of uniform thickness having depressed portions forming anannular substantially cylindrical depression in the shield and a band ofrelatively soft metal disposed in said depression and securing theshield sections together.

2. An expansion shield comprising a pair of exactly similar sections,each section having a depressed portion adapted to register with thedepressed portion of the other section when the sections are securedtogether, said shield having an annular flange at its outer end, anannular flange at its inner end and an annular shoulder intermediate itsends and a band of relatively soft metal disposed in the depressedportion of the shield and securing the shield sections together.

3. An expansion shield comprising a pair of sections, said sectionshaving depressed portions forming an annular depression in the shieldand a band of relatively soft metal disposed in the annular depressionof the shield, and having its outer surface substantially coincidingwith the outer surface of the remaining portion of the shield.

4. An expansion shield comprising a tubular member continuous from endto end and having a constricted portion adjacent its inner end andrelatively soft metal disposed on the outer surface of said constrictedportion and having an outside diameter substantially equal to t-heoutside diameter of the remaining portion of the shield.

5. An expansion shield comprising a tubular member continuous from endto end and having a constricted portion adjacent its inner end andrelatively soft metal disposed on the outer surface of and surroundingsaid constricted portion and having .an outside diameter substantiallyequal to the outside diameter of the remaining portion of the shield.

6. An expansion shield having a plurality of expansible portions andconsisting of a tubular member continuous from end to end and reduced insection throughout a portion of its length, a shoulder being forlnedbetween the reduced portion and the remaining portion of the shield anda band of relatively soft metal disposed on the reduced portion of theshield extending longitudinally from the shoulder.

7. An expansion shield comprising a plurality of longitudinallyextending laterally expansible sections and having an annularsubstantially cylindrical depression intermediate its ends and ashoulder at each end of the depression and an annular substantiallycylindrical band disposed in the depression 1 5 between said shoulders,and an expanding member having its outside diameter greater than theinside diameter of the depression.

8. An expansion shield comprising a plurality of longitudinallyextending laterally expansible sections and having an annularsubstantially cylindrical depression intermediate its ends and ashoulder at each end of the depression and an annular substantiallycylindrical band disposed in the depression between said shoulders andsubstantially filling the depression, and an expanding member having itsoutside diameter greater than the inside diameter of the depression. M

9. An oxpansionshield of relatively hard Wall opening.

metal having an elongatedconstricted portion, a band of excess metaldisposed on the outer surface of said constricted portion and having anoutside diameter substantially equal to the outside diameter of theunconstricted portion of the shield, means for retaining said excessmetal against longitudinal movement relative to the shield and anexpanding element having a greater transverse dimension than thetransverse dimension of the constricted portion adapted to engage theconstricted portion and expand the shield, thereby forcing the excessmetal radially into gripping engagement With the 10. An expansion shieldof non-uniform diameter continuous from'end to end having a laterallyextending flange at its inner end and a band of relatively soft metalmounted on a portion of the shield and having its inner end abuttingsaid flange, the outside diameter of the band being substantially equalto the outside diameter of the remaining portion of the shield 11. Anexpansion shield of non-uniform diameter continuous from end to endhaving a laterally extending flange atvits outer end and having aplurality of laterally expansible portions, a shoulder intermediate itsends and a band of expansible excess metal encircling the shield andhaving its outer end abutting said shoulder, said flange having anoutside diameter greater than the outside diameter of the remainingportion of the shield.

12. An expansion shield of non-uniform diameter having a laterallyextending flange at its outer end and comprising a plurality oflaterally expansible portions, an inwardly extending, annular shoulderintermediateits ends constrictingthe bore of the shield and a band ofexpansible excess metal encircling the shield and having its outer endabutting said shoulder, said flange having an outside diameter greaterthan the outside diameter of the remaining portion of the shield. 13. Anexpansion shield having a laterally extending flange at its outer end, ashoulder intermediate its ends constricting the bore of the shield and aband of relatively soft metal encircling the shield and having its outerend abutting said shoulder.

14. An expansion shield having a laterally extending flange at its outerend, an in Wardly extending, annular shoulder 1Ili6l-* mediate its endsconstricting the bore of the shield and a band of relatively soft metalencircling the shield and having its outer end abutting said shoulder. I

15. An expansion shield comprising a pair of relatively hard sheet metalsections of uniform thickness, said sections being transversely bent sothat when assembled, they form between them a longitudinal bore smallerat the inner end than at the outer end thereof, both ends of saidsections being bent outwardly to form flanges and a band of relativelysoft metal bent around said assembled sections to hold them together,one end of said band abutting against the flange at the inner end of theshield and said band extending longitudinally throughout a portion of Vthe length of the shield. 7

7 16; An expansion shield having an annular substantially cylindricalconstricted portion spaced from the outer end of the shield and forminga bore having a smaller diameter than the internal diameter of theremaining portion of theshield and a band of relatively soft metaldisposed around the constricted portion of the shield.

17. In combination, an expansion shield having an annular substantiallycylindrical constricted portion spaced from the outer end of the shieldand forming a bore having a smaller diameter than the internal diameterof the remaining portion of the shield, a band of relatively soft metaldisposed around the constricted portion of the shield, and an expandingmember having an external diameter adapted to fit Within the outerunconstricted portion of the shield but adapted to expand theconstricted portion of the shield.

18. In combination, a sheet metal expansion shield having a flangedinner end, a metal band encircling the shield and abutting said flangedinner end, and a hammer driven expander adapted to expandthe shield andthe metal band. a 19. in combination, an expansion shield having alaterally extending flange on its inner end, a metal band encirclingsaid shield,

and a hammer driven expander adapted to expand the shield, the flangethereon, and the metal band.

' 20; An expansion shield, continuous from end to end, having alaterally extending flange at its inner end, and a band of relativelysoft metalh'aving its inner end abutting the flange.

21. In combination, an expansion shield having a laterally extendingflange at its outer end, an outer annular substantially cylindricalportion and an inner substantially cylindrical constricted portionforming a bore having a smaller diameter than the internal diameter ofthe outer portion of the shield, a band of relatively soft metaldisposed around the inner constricted portion of the shield, and acylindrical expanding member having an external diameter adapted to fitWithin the outer portion of the shield but adapted to expand theconstricted portion of the shield and having ahead adapted to overlapand reinforce said flange.

22. In combination, a sheet metal expan sion shield having a flanged endand an expansible portion spaced therefrom, a metal band of relativelysoft metal supported on the expansible portion of the shield byencirchng the same, and a hammer driven ex pander adapted to expand theshield and the metal band, said expander having a head adapted tooverlap and reinforce the flange.

A21 expansion shield comprising a leterally expunsible tubular memberhaving an abutment at outer end an I a hand of relatively soft metalsuperimposed on the shield on a portion thereof spaced from saidabutment and supported on the shield by encir- (:lin the same.

24-. In combination, a sheet metal expansion shield, 21 hand of rlatively soft metal supported on the expansible portion of said shieldby encircling the same, and a hammer driven expander adapted to expandthe shield and the metal band.

In Witness whereof, I have hereunto set my lmnd this 26th day of May,1926.

RALPH E. OGDEN.

